It was I taking a turn to speak from the mothership about my eggbot,
thanks for noticing Andrew! I didn't really document the build process
but you can find the sketchup model here:
http://web.ncf.ca/fj385/eggbot/ with a couple of photos of the
assembled machine. I cut it out of 1/2" hdpe, the mounts are Nema 23,
the control circuitry is the eibot board from sparkfun.
Cheers
Pedro
Also to note I saw Paul's lathe on the Ponoko blog. Nice one Paul!